1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2023 Alexander V. Chernikov <melifaro@FreeBSD.org> 5 * Copyright (c) 2023 Rubicon Communications, LLC (Netgate) 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29 #include <sys/cdefs.h> 30 #include "opt_inet.h" 31 #include "opt_inet6.h" 32 33 #include <sys/param.h> 34 #include <sys/malloc.h> 35 #include <sys/mbuf.h> 36 #include <sys/priv.h> 37 #include <sys/socket.h> 38 #include <sys/ucred.h> 39 40 #include <net/pfvar.h> 41 42 #include <netlink/netlink.h> 43 #include <netlink/netlink_ctl.h> 44 #include <netlink/netlink_generic.h> 45 #include <netlink/netlink_message_writer.h> 46 47 #include <netpfil/pf/pf_nl.h> 48 49 #define DEBUG_MOD_NAME nl_pf 50 #define DEBUG_MAX_LEVEL LOG_DEBUG3 51 #include <netlink/netlink_debug.h> 52 _DECLARE_DEBUG(LOG_DEBUG); 53 54 struct nl_parsed_state { 55 uint8_t version; 56 uint32_t id; 57 uint32_t creatorid; 58 char ifname[IFNAMSIZ]; 59 uint16_t proto; 60 sa_family_t af; 61 struct pf_addr addr; 62 struct pf_addr mask; 63 }; 64 65 #define _IN(_field) offsetof(struct genlmsghdr, _field) 66 #define _OUT(_field) offsetof(struct nl_parsed_state, _field) 67 static const struct nlattr_parser nla_p_state[] = { 68 { .type = PF_ST_ID, .off = _OUT(id), .cb = nlattr_get_uint32 }, 69 { .type = PF_ST_CREATORID, .off = _OUT(creatorid), .cb = nlattr_get_uint32 }, 70 { .type = PF_ST_IFNAME, .arg = (const void *)IFNAMSIZ, .off = _OUT(ifname), .cb = nlattr_get_chara }, 71 { .type = PF_ST_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 72 { .type = PF_ST_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint16 }, 73 { .type = PF_ST_FILTER_ADDR, .off = _OUT(addr), .cb = nlattr_get_in6_addr }, 74 { .type = PF_ST_FILTER_MASK, .off = _OUT(mask), .cb = nlattr_get_in6_addr }, 75 }; 76 static const struct nlfield_parser nlf_p_generic[] = { 77 { .off_in = _IN(version), .off_out = _OUT(version), .cb = nlf_get_u8 }, 78 }; 79 #undef _IN 80 #undef _OUT 81 NL_DECLARE_PARSER(state_parser, struct genlmsghdr, nlf_p_generic, nla_p_state); 82 83 static void 84 dump_addr(struct nl_writer *nw, int attr, const struct pf_addr *addr, int af) 85 { 86 switch (af) { 87 case AF_INET: 88 nlattr_add(nw, attr, 4, &addr->v4); 89 break; 90 case AF_INET6: 91 nlattr_add(nw, attr, 16, &addr->v6); 92 break; 93 }; 94 } 95 96 static bool 97 dump_state_peer(struct nl_writer *nw, int attr, const struct pf_state_peer *peer) 98 { 99 int off = nlattr_add_nested(nw, attr); 100 if (off == 0) 101 return (false); 102 103 nlattr_add_u32(nw, PF_STP_SEQLO, peer->seqlo); 104 nlattr_add_u32(nw, PF_STP_SEQHI, peer->seqhi); 105 nlattr_add_u32(nw, PF_STP_SEQDIFF, peer->seqdiff); 106 nlattr_add_u16(nw, PF_STP_MAX_WIN, peer->max_win); 107 nlattr_add_u16(nw, PF_STP_MSS, peer->mss); 108 nlattr_add_u8(nw, PF_STP_STATE, peer->state); 109 nlattr_add_u8(nw, PF_STP_WSCALE, peer->wscale); 110 111 if (peer->scrub != NULL) { 112 struct pf_state_scrub *sc = peer->scrub; 113 uint16_t pfss_flags = sc->pfss_flags & PFSS_TIMESTAMP; 114 115 nlattr_add_u16(nw, PF_STP_PFSS_FLAGS, pfss_flags); 116 nlattr_add_u32(nw, PF_STP_PFSS_TS_MOD, sc->pfss_ts_mod); 117 nlattr_add_u8(nw, PF_STP_PFSS_TTL, sc->pfss_ttl); 118 nlattr_add_u8(nw, PF_STP_SCRUB_FLAG, PFSYNC_SCRUB_FLAG_VALID); 119 } 120 nlattr_set_len(nw, off); 121 122 return (true); 123 } 124 125 static bool 126 dump_state_key(struct nl_writer *nw, int attr, const struct pf_state_key *key) 127 { 128 int off = nlattr_add_nested(nw, attr); 129 if (off == 0) 130 return (false); 131 132 dump_addr(nw, PF_STK_ADDR0, &key->addr[0], key->af); 133 dump_addr(nw, PF_STK_ADDR1, &key->addr[1], key->af); 134 nlattr_add_u16(nw, PF_STK_PORT0, key->port[0]); 135 nlattr_add_u16(nw, PF_STK_PORT1, key->port[1]); 136 nlattr_add_u8(nw, PF_STK_AF, key->af); 137 nlattr_add_u16(nw, PF_STK_PROTO, key->proto); 138 139 nlattr_set_len(nw, off); 140 141 return (true); 142 } 143 144 static int 145 dump_state(struct nlpcb *nlp, const struct nlmsghdr *hdr, struct pf_kstate *s, 146 struct nl_pstate *npt) 147 { 148 struct nl_writer *nw = npt->nw; 149 int error = 0; 150 int af; 151 struct pf_state_key *key; 152 153 PF_STATE_LOCK_ASSERT(s); 154 155 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 156 goto enomem; 157 158 struct genlmsghdr *ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 159 ghdr_new->cmd = PFNL_CMD_GETSTATES; 160 ghdr_new->version = 0; 161 ghdr_new->reserved = 0; 162 163 nlattr_add_u64(nw, PF_ST_VERSION, PF_STATE_VERSION); 164 165 key = s->key[PF_SK_WIRE]; 166 if (!dump_state_key(nw, PF_ST_KEY_WIRE, key)) 167 goto enomem; 168 key = s->key[PF_SK_STACK]; 169 if (!dump_state_key(nw, PF_ST_KEY_STACK, key)) 170 goto enomem; 171 172 af = s->key[PF_SK_WIRE]->af; 173 nlattr_add_u8(nw, PF_ST_PROTO, s->key[PF_SK_WIRE]->proto); 174 nlattr_add_u8(nw, PF_ST_AF, af); 175 176 nlattr_add_string(nw, PF_ST_IFNAME, s->kif->pfik_name); 177 nlattr_add_string(nw, PF_ST_ORIG_IFNAME, s->orig_kif->pfik_name); 178 dump_addr(nw, PF_ST_RT_ADDR, &s->act.rt_addr, af); 179 nlattr_add_u32(nw, PF_ST_CREATION, time_uptime - (s->creation / 1000)); 180 uint32_t expire = pf_state_expires(s); 181 if (expire > time_uptime) 182 expire = expire - time_uptime; 183 nlattr_add_u32(nw, PF_ST_EXPIRE, expire); 184 nlattr_add_u8(nw, PF_ST_DIRECTION, s->direction); 185 nlattr_add_u8(nw, PF_ST_LOG, s->act.log); 186 nlattr_add_u8(nw, PF_ST_TIMEOUT, s->timeout); 187 nlattr_add_u16(nw, PF_ST_STATE_FLAGS, s->state_flags); 188 uint8_t sync_flags = 0; 189 if (s->src_node) 190 sync_flags |= PFSYNC_FLAG_SRCNODE; 191 if (s->nat_src_node) 192 sync_flags |= PFSYNC_FLAG_NATSRCNODE; 193 nlattr_add_u8(nw, PF_ST_SYNC_FLAGS, sync_flags); 194 nlattr_add_u64(nw, PF_ST_ID, s->id); 195 nlattr_add_u32(nw, PF_ST_CREATORID, htonl(s->creatorid)); 196 197 nlattr_add_u32(nw, PF_ST_RULE, s->rule ? s->rule->nr : -1); 198 nlattr_add_u32(nw, PF_ST_ANCHOR, s->anchor ? s->anchor->nr : -1); 199 nlattr_add_u32(nw, PF_ST_NAT_RULE, s->nat_rule ? s->nat_rule->nr : -1); 200 201 nlattr_add_u64(nw, PF_ST_PACKETS0, s->packets[0]); 202 nlattr_add_u64(nw, PF_ST_PACKETS1, s->packets[1]); 203 nlattr_add_u64(nw, PF_ST_BYTES0, s->bytes[0]); 204 nlattr_add_u64(nw, PF_ST_BYTES1, s->bytes[1]); 205 nlattr_add_u32(nw, PF_ST_RTABLEID, s->act.rtableid); 206 nlattr_add_u8(nw, PF_ST_MIN_TTL, s->act.min_ttl); 207 nlattr_add_u16(nw, PF_ST_MAX_MSS, s->act.max_mss); 208 nlattr_add_u16(nw, PF_ST_DNPIPE, s->act.dnpipe); 209 nlattr_add_u16(nw, PF_ST_DNRPIPE, s->act.dnrpipe); 210 nlattr_add_u8(nw, PF_ST_RT, s->act.rt); 211 if (s->act.rt_kif != NULL) 212 nlattr_add_string(nw, PF_ST_RT_IFNAME, s->act.rt_kif->pfik_name); 213 214 if (!dump_state_peer(nw, PF_ST_PEER_SRC, &s->src)) 215 goto enomem; 216 if (!dump_state_peer(nw, PF_ST_PEER_DST, &s->dst)) 217 goto enomem; 218 219 if (nlmsg_end(nw)) 220 return (0); 221 222 enomem: 223 error = ENOMEM; 224 nlmsg_abort(nw); 225 return (error); 226 } 227 228 static int 229 handle_dumpstates(struct nlpcb *nlp, struct nl_parsed_state *attrs, 230 struct nlmsghdr *hdr, struct nl_pstate *npt) 231 { 232 int error = 0; 233 234 hdr->nlmsg_flags |= NLM_F_MULTI; 235 236 for (int i = 0; i <= V_pf_hashmask; i++) { 237 struct pf_idhash *ih = &V_pf_idhash[i]; 238 struct pf_kstate *s; 239 240 if (LIST_EMPTY(&ih->states)) 241 continue; 242 243 PF_HASHROW_LOCK(ih); 244 LIST_FOREACH(s, &ih->states, entry) { 245 sa_family_t af = s->key[PF_SK_WIRE]->af; 246 247 if (s->timeout == PFTM_UNLINKED) 248 continue; 249 250 /* Filter */ 251 if (attrs->creatorid != 0 && s->creatorid != attrs->creatorid) 252 continue; 253 if (attrs->ifname[0] != 0 && 254 strncmp(attrs->ifname, s->kif->pfik_name, IFNAMSIZ) != 0) 255 continue; 256 if (attrs->proto != 0 && s->key[PF_SK_WIRE]->proto != attrs->proto) 257 continue; 258 if (attrs->af != 0 && af != attrs->af) 259 continue; 260 if (pf_match_addr(1, &s->key[PF_SK_WIRE]->addr[0], 261 &attrs->mask, &attrs->addr, af) && 262 pf_match_addr(1, &s->key[PF_SK_WIRE]->addr[1], 263 &attrs->mask, &attrs->addr, af) && 264 pf_match_addr(1, &s->key[PF_SK_STACK]->addr[0], 265 &attrs->mask, &attrs->addr, af) && 266 pf_match_addr(1, &s->key[PF_SK_STACK]->addr[1], 267 &attrs->mask, &attrs->addr, af)) 268 continue; 269 270 error = dump_state(nlp, hdr, s, npt); 271 if (error != 0) 272 break; 273 } 274 PF_HASHROW_UNLOCK(ih); 275 } 276 277 if (!nlmsg_end_dump(npt->nw, error, hdr)) { 278 NL_LOG(LOG_DEBUG, "Unable to finalize the dump"); 279 return (ENOMEM); 280 } 281 282 return (error); 283 } 284 285 static int 286 handle_getstate(struct nlpcb *nlp, struct nl_parsed_state *attrs, 287 struct nlmsghdr *hdr, struct nl_pstate *npt) 288 { 289 struct pf_kstate *s; 290 int ret; 291 292 s = pf_find_state_byid(attrs->id, attrs->creatorid); 293 if (s == NULL) 294 return (ENOENT); 295 ret = dump_state(nlp, hdr, s, npt); 296 PF_STATE_UNLOCK(s); 297 298 return (ret); 299 } 300 301 static int 302 dump_creatorid(struct nlpcb *nlp, const struct nlmsghdr *hdr, uint32_t creator, 303 struct nl_pstate *npt) 304 { 305 struct nl_writer *nw = npt->nw; 306 307 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 308 goto enomem; 309 310 struct genlmsghdr *ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 311 ghdr_new->cmd = PFNL_CMD_GETCREATORS; 312 ghdr_new->version = 0; 313 ghdr_new->reserved = 0; 314 315 nlattr_add_u32(nw, PF_ST_CREATORID, htonl(creator)); 316 317 if (nlmsg_end(nw)) 318 return (0); 319 320 enomem: 321 nlmsg_abort(nw); 322 return (ENOMEM); 323 } 324 325 static int 326 pf_handle_getstates(struct nlmsghdr *hdr, struct nl_pstate *npt) 327 { 328 int error; 329 330 struct nl_parsed_state attrs = {}; 331 error = nl_parse_nlmsg(hdr, &state_parser, npt, &attrs); 332 if (error != 0) 333 return (error); 334 335 if (attrs.id != 0) 336 error = handle_getstate(npt->nlp, &attrs, hdr, npt); 337 else 338 error = handle_dumpstates(npt->nlp, &attrs, hdr, npt); 339 340 return (error); 341 } 342 343 static int 344 pf_handle_getcreators(struct nlmsghdr *hdr, struct nl_pstate *npt) 345 { 346 uint32_t creators[16]; 347 int error = 0; 348 349 bzero(creators, sizeof(creators)); 350 351 for (int i = 0; i < V_pf_hashmask; i++) { 352 struct pf_idhash *ih = &V_pf_idhash[i]; 353 struct pf_kstate *s; 354 355 if (LIST_EMPTY(&ih->states)) 356 continue; 357 358 PF_HASHROW_LOCK(ih); 359 LIST_FOREACH(s, &ih->states, entry) { 360 int j; 361 if (s->timeout == PFTM_UNLINKED) 362 continue; 363 364 for (j = 0; j < nitems(creators); j++) { 365 if (creators[j] == s->creatorid) 366 break; 367 if (creators[j] == 0) { 368 creators[j] = s->creatorid; 369 break; 370 } 371 } 372 if (j == nitems(creators)) 373 printf("Warning: too many creators!\n"); 374 } 375 PF_HASHROW_UNLOCK(ih); 376 } 377 378 hdr->nlmsg_flags |= NLM_F_MULTI; 379 for (int i = 0; i < nitems(creators); i++) { 380 if (creators[i] == 0) 381 break; 382 error = dump_creatorid(npt->nlp, hdr, creators[i], npt); 383 } 384 385 if (!nlmsg_end_dump(npt->nw, error, hdr)) { 386 NL_LOG(LOG_DEBUG, "Unable to finalize the dump"); 387 return (ENOMEM); 388 } 389 390 return (error); 391 } 392 393 static int 394 pf_handle_start(struct nlmsghdr *hdr __unused, struct nl_pstate *npt __unused) 395 { 396 return (pf_start()); 397 } 398 399 static int 400 pf_handle_stop(struct nlmsghdr *hdr __unused, struct nl_pstate *npt __unused) 401 { 402 return (pf_stop()); 403 } 404 405 #define _OUT(_field) offsetof(struct pf_addr_wrap, _field) 406 static const struct nlattr_parser nla_p_addr_wrap[] = { 407 { .type = PF_AT_ADDR, .off = _OUT(v.a.addr), .cb = nlattr_get_in6_addr }, 408 { .type = PF_AT_MASK, .off = _OUT(v.a.mask), .cb = nlattr_get_in6_addr }, 409 { .type = PF_AT_IFNAME, .off = _OUT(v.ifname), .arg = (void *)IFNAMSIZ,.cb = nlattr_get_chara }, 410 { .type = PF_AT_TABLENAME, .off = _OUT(v.tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara }, 411 { .type = PF_AT_TYPE, .off = _OUT(type), .cb = nlattr_get_uint8 }, 412 { .type = PF_AT_IFLAGS, .off = _OUT(iflags), .cb = nlattr_get_uint8 }, 413 }; 414 NL_DECLARE_ATTR_PARSER(addr_wrap_parser, nla_p_addr_wrap); 415 #undef _OUT 416 417 static bool 418 nlattr_add_addr_wrap(struct nl_writer *nw, int attrtype, struct pf_addr_wrap *a) 419 { 420 int off = nlattr_add_nested(nw, attrtype); 421 422 nlattr_add_in6_addr(nw, PF_AT_ADDR, &a->v.a.addr.v6); 423 nlattr_add_in6_addr(nw, PF_AT_MASK, &a->v.a.mask.v6); 424 nlattr_add_u8(nw, PF_AT_TYPE, a->type); 425 nlattr_add_u8(nw, PF_AT_IFLAGS, a->iflags); 426 427 if (a->type == PF_ADDR_DYNIFTL) { 428 nlattr_add_string(nw, PF_AT_IFNAME, a->v.ifname); 429 nlattr_add_u32(nw, PF_AT_DYNCNT, a->p.dyncnt); 430 } else if (a->type == PF_ADDR_TABLE) { 431 nlattr_add_string(nw, PF_AT_TABLENAME, a->v.tblname); 432 nlattr_add_u32(nw, PF_AT_TBLCNT, a->p.tblcnt); 433 } 434 435 nlattr_set_len(nw, off); 436 437 return (true); 438 } 439 440 #define _OUT(_field) offsetof(struct pf_rule_addr, _field) 441 static const struct nlattr_parser nla_p_ruleaddr[] = { 442 { .type = PF_RAT_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = nlattr_get_nested }, 443 { .type = PF_RAT_SRC_PORT, .off = _OUT(port[0]), .cb = nlattr_get_uint16 }, 444 { .type = PF_RAT_DST_PORT, .off = _OUT(port[1]), .cb = nlattr_get_uint16 }, 445 { .type = PF_RAT_NEG, .off = _OUT(neg), .cb = nlattr_get_uint8 }, 446 { .type = PF_RAT_OP, .off = _OUT(port_op), .cb = nlattr_get_uint8 }, 447 }; 448 NL_DECLARE_ATTR_PARSER(rule_addr_parser, nla_p_ruleaddr); 449 #undef _OUT 450 451 static bool 452 nlattr_add_rule_addr(struct nl_writer *nw, int attrtype, struct pf_rule_addr *r) 453 { 454 struct pf_addr_wrap aw = {0}; 455 int off = nlattr_add_nested(nw, attrtype); 456 457 bcopy(&(r->addr), &aw, sizeof(struct pf_addr_wrap)); 458 pf_addr_copyout(&aw); 459 460 nlattr_add_addr_wrap(nw, PF_RAT_ADDR, &aw); 461 nlattr_add_u16(nw, PF_RAT_SRC_PORT, r->port[0]); 462 nlattr_add_u16(nw, PF_RAT_DST_PORT, r->port[1]); 463 nlattr_add_u8(nw, PF_RAT_NEG, r->neg); 464 nlattr_add_u8(nw, PF_RAT_OP, r->port_op); 465 466 nlattr_set_len(nw, off); 467 468 return (true); 469 } 470 471 #define _OUT(_field) offsetof(struct pf_mape_portset, _field) 472 static const struct nlattr_parser nla_p_mape_portset[] = { 473 { .type = PF_MET_OFFSET, .off = _OUT(offset), .cb = nlattr_get_uint8 }, 474 { .type = PF_MET_PSID_LEN, .off = _OUT(psidlen), .cb = nlattr_get_uint8 }, 475 {. type = PF_MET_PSID, .off = _OUT(psid), .cb = nlattr_get_uint16 }, 476 }; 477 NL_DECLARE_ATTR_PARSER(mape_portset_parser, nla_p_mape_portset); 478 #undef _OUT 479 480 static bool 481 nlattr_add_mape_portset(struct nl_writer *nw, int attrtype, const struct pf_mape_portset *m) 482 { 483 int off = nlattr_add_nested(nw, attrtype); 484 485 nlattr_add_u8(nw, PF_MET_OFFSET, m->offset); 486 nlattr_add_u8(nw, PF_MET_PSID_LEN, m->psidlen); 487 nlattr_add_u16(nw, PF_MET_PSID, m->psid); 488 489 nlattr_set_len(nw, off); 490 491 return (true); 492 } 493 494 struct nl_parsed_labels 495 { 496 char labels[PF_RULE_MAX_LABEL_COUNT][PF_RULE_LABEL_SIZE]; 497 uint32_t i; 498 }; 499 500 static int 501 nlattr_get_pf_rule_labels(struct nlattr *nla, struct nl_pstate *npt, 502 const void *arg, void *target) 503 { 504 struct nl_parsed_labels *l = (struct nl_parsed_labels *)target; 505 int ret; 506 507 if (l->i >= PF_RULE_MAX_LABEL_COUNT) 508 return (E2BIG); 509 510 ret = nlattr_get_chara(nla, npt, (void *)PF_RULE_LABEL_SIZE, 511 l->labels[l->i]); 512 if (ret == 0) 513 l->i++; 514 515 return (ret); 516 } 517 518 #define _OUT(_field) offsetof(struct nl_parsed_labels, _field) 519 static const struct nlattr_parser nla_p_labels[] = { 520 { .type = PF_LT_LABEL, .off = 0, .cb = nlattr_get_pf_rule_labels }, 521 }; 522 NL_DECLARE_ATTR_PARSER(rule_labels_parser, nla_p_labels); 523 #undef _OUT 524 525 static int 526 nlattr_get_nested_pf_rule_labels(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target) 527 { 528 struct nl_parsed_labels parsed_labels = { }; 529 int error; 530 531 /* Assumes target points to the beginning of the structure */ 532 error = nl_parse_header(NLA_DATA(nla), NLA_DATA_LEN(nla), &rule_labels_parser, npt, &parsed_labels); 533 if (error != 0) 534 return (error); 535 536 memcpy(target, parsed_labels.labels, sizeof(parsed_labels.labels)); 537 538 return (0); 539 } 540 541 static bool 542 nlattr_add_labels(struct nl_writer *nw, int attrtype, const struct pf_krule *r) 543 { 544 int off = nlattr_add_nested(nw, attrtype); 545 int i = 0; 546 547 while (r->label[i][0] != 0 548 && i < PF_RULE_MAX_LABEL_COUNT) { 549 nlattr_add_string(nw, PF_LT_LABEL, r->label[i]); 550 i++; 551 } 552 553 nlattr_set_len(nw, off); 554 555 return (true); 556 } 557 558 #define _OUT(_field) offsetof(struct pf_kpool, _field) 559 static const struct nlattr_parser nla_p_pool[] = { 560 { .type = PF_PT_KEY, .off = _OUT(key), .arg = (void *)sizeof(struct pf_poolhashkey), .cb = nlattr_get_bytes }, 561 { .type = PF_PT_COUNTER, .off = _OUT(counter), .cb = nlattr_get_in6_addr }, 562 { .type = PF_PT_TBLIDX, .off = _OUT(tblidx), .cb = nlattr_get_uint32 }, 563 { .type = PF_PT_PROXY_SRC_PORT, .off = _OUT(proxy_port[0]), .cb = nlattr_get_uint16 }, 564 { .type = PF_PT_PROXY_DST_PORT, .off = _OUT(proxy_port[1]), .cb = nlattr_get_uint16 }, 565 { .type = PF_PT_OPTS, .off = _OUT(opts), .cb = nlattr_get_uint8 }, 566 { .type = PF_PT_MAPE, .off = _OUT(mape), .arg = &mape_portset_parser, .cb = nlattr_get_nested }, 567 }; 568 NL_DECLARE_ATTR_PARSER(pool_parser, nla_p_pool); 569 #undef _OUT 570 571 static bool 572 nlattr_add_pool(struct nl_writer *nw, int attrtype, const struct pf_kpool *pool) 573 { 574 int off = nlattr_add_nested(nw, attrtype); 575 576 nlattr_add(nw, PF_PT_KEY, sizeof(struct pf_poolhashkey), &pool->key); 577 nlattr_add_in6_addr(nw, PF_PT_COUNTER, (const struct in6_addr *)&pool->counter); 578 nlattr_add_u32(nw, PF_PT_TBLIDX, pool->tblidx); 579 nlattr_add_u16(nw, PF_PT_PROXY_SRC_PORT, pool->proxy_port[0]); 580 nlattr_add_u16(nw, PF_PT_PROXY_DST_PORT, pool->proxy_port[1]); 581 nlattr_add_u8(nw, PF_PT_OPTS, pool->opts); 582 nlattr_add_mape_portset(nw, PF_PT_MAPE, &pool->mape); 583 584 nlattr_set_len(nw, off); 585 586 return (true); 587 } 588 589 #define _OUT(_field) offsetof(struct pf_rule_uid, _field) 590 static const struct nlattr_parser nla_p_rule_uid[] = { 591 { .type = PF_RUT_UID_LOW, .off = _OUT(uid[0]), .cb = nlattr_get_uint32 }, 592 { .type = PF_RUT_UID_HIGH, .off = _OUT(uid[1]), .cb = nlattr_get_uint32 }, 593 { .type = PF_RUT_OP, .off = _OUT(op), .cb = nlattr_get_uint8 }, 594 }; 595 NL_DECLARE_ATTR_PARSER(rule_uid_parser, nla_p_rule_uid); 596 #undef _OUT 597 598 static bool 599 nlattr_add_rule_uid(struct nl_writer *nw, int attrtype, const struct pf_rule_uid *u) 600 { 601 int off = nlattr_add_nested(nw, attrtype); 602 603 nlattr_add_u32(nw, PF_RUT_UID_LOW, u->uid[0]); 604 nlattr_add_u32(nw, PF_RUT_UID_HIGH, u->uid[1]); 605 nlattr_add_u8(nw, PF_RUT_OP, u->op); 606 607 nlattr_set_len(nw, off); 608 609 return (true); 610 } 611 612 struct nl_parsed_timeouts 613 { 614 uint32_t timeouts[PFTM_MAX]; 615 uint32_t i; 616 }; 617 618 static int 619 nlattr_get_pf_timeout(struct nlattr *nla, struct nl_pstate *npt, 620 const void *arg, void *target) 621 { 622 struct nl_parsed_timeouts *t = (struct nl_parsed_timeouts *)target; 623 int ret; 624 625 if (t->i >= PFTM_MAX) 626 return (E2BIG); 627 628 ret = nlattr_get_uint32(nla, npt, NULL, &t->timeouts[t->i]); 629 if (ret == 0) 630 t->i++; 631 632 return (ret); 633 } 634 635 #define _OUT(_field) offsetof(struct nl_parsed_timeout, _field) 636 static const struct nlattr_parser nla_p_timeouts[] = { 637 { .type = PF_TT_TIMEOUT, .off = 0, .cb = nlattr_get_pf_timeout }, 638 }; 639 NL_DECLARE_ATTR_PARSER(timeout_parser, nla_p_timeouts); 640 #undef _OUT 641 642 static int 643 nlattr_get_nested_timeouts(struct nlattr *nla, struct nl_pstate *npt, const void *arg, void *target) 644 { 645 struct nl_parsed_timeouts parsed_timeouts = { }; 646 int error; 647 648 /* Assumes target points to the beginning of the structure */ 649 error = nl_parse_header(NLA_DATA(nla), NLA_DATA_LEN(nla), &timeout_parser, npt, &parsed_timeouts); 650 if (error != 0) 651 return (error); 652 653 memcpy(target, parsed_timeouts.timeouts, sizeof(parsed_timeouts.timeouts)); 654 655 return (0); 656 } 657 658 static bool 659 nlattr_add_timeout(struct nl_writer *nw, int attrtype, uint32_t *timeout) 660 { 661 int off = nlattr_add_nested(nw, attrtype); 662 663 for (int i = 0; i < PFTM_MAX; i++) 664 nlattr_add_u32(nw, PF_RT_TIMEOUT, timeout[i]); 665 666 nlattr_set_len(nw, off); 667 668 return (true); 669 } 670 671 #define _OUT(_field) offsetof(struct pf_krule, _field) 672 static const struct nlattr_parser nla_p_rule[] = { 673 { .type = PF_RT_SRC, .off = _OUT(src), .arg = &rule_addr_parser,.cb = nlattr_get_nested }, 674 { .type = PF_RT_DST, .off = _OUT(dst), .arg = &rule_addr_parser,.cb = nlattr_get_nested }, 675 { .type = PF_RT_RIDENTIFIER, .off = _OUT(ridentifier), .cb = nlattr_get_uint32 }, 676 { .type = PF_RT_LABELS, .off = _OUT(label), .arg = &rule_labels_parser,.cb = nlattr_get_nested_pf_rule_labels }, 677 { .type = PF_RT_IFNAME, .off = _OUT(ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 678 { .type = PF_RT_QNAME, .off = _OUT(qname), .arg = (void *)PF_QNAME_SIZE, .cb = nlattr_get_chara }, 679 { .type = PF_RT_PQNAME, .off = _OUT(pqname), .arg = (void *)PF_QNAME_SIZE, .cb = nlattr_get_chara }, 680 { .type = PF_RT_TAGNAME, .off = _OUT(tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = nlattr_get_chara }, 681 { .type = PF_RT_MATCH_TAGNAME, .off = _OUT(match_tagname), .arg = (void *)PF_TAG_NAME_SIZE, .cb = nlattr_get_chara }, 682 { .type = PF_RT_OVERLOAD_TBLNAME, .off = _OUT(overload_tblname), .arg = (void *)PF_TABLE_NAME_SIZE, .cb = nlattr_get_chara }, 683 { .type = PF_RT_RPOOL_RDR, .off = _OUT(rdr), .arg = &pool_parser, .cb = nlattr_get_nested }, 684 { .type = PF_RT_OS_FINGERPRINT, .off = _OUT(os_fingerprint), .cb = nlattr_get_uint32 }, 685 { .type = PF_RT_RTABLEID, .off = _OUT(rtableid), .cb = nlattr_get_uint32 }, 686 { .type = PF_RT_TIMEOUT, .off = _OUT(timeout), .arg = &timeout_parser, .cb = nlattr_get_nested_timeouts }, 687 { .type = PF_RT_MAX_STATES, .off = _OUT(max_states), .cb = nlattr_get_uint32 }, 688 { .type = PF_RT_MAX_SRC_NODES, .off = _OUT(max_src_nodes), .cb = nlattr_get_uint32 }, 689 { .type = PF_RT_MAX_SRC_STATES, .off = _OUT(max_src_states), .cb = nlattr_get_uint32 }, 690 { .type = PF_RT_MAX_SRC_CONN_RATE_LIMIT, .off = _OUT(max_src_conn_rate.limit), .cb = nlattr_get_uint32 }, 691 { .type = PF_RT_MAX_SRC_CONN_RATE_SECS, .off = _OUT(max_src_conn_rate.seconds), .cb = nlattr_get_uint32 }, 692 { .type = PF_RT_DNPIPE, .off = _OUT(dnpipe), .cb = nlattr_get_uint16 }, 693 { .type = PF_RT_DNRPIPE, .off = _OUT(dnrpipe), .cb = nlattr_get_uint16 }, 694 { .type = PF_RT_DNFLAGS, .off = _OUT(free_flags), .cb = nlattr_get_uint32 }, 695 { .type = PF_RT_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 696 { .type = PF_RT_PROB, .off = _OUT(prob), .cb = nlattr_get_uint32 }, 697 { .type = PF_RT_CUID, .off = _OUT(cuid), .cb = nlattr_get_uint32 }, 698 {. type = PF_RT_CPID, .off = _OUT(cpid), .cb = nlattr_get_uint32 }, 699 { .type = PF_RT_RETURN_ICMP, .off = _OUT(return_icmp), .cb = nlattr_get_uint16 }, 700 { .type = PF_RT_RETURN_ICMP6, .off = _OUT(return_icmp6), .cb = nlattr_get_uint16 }, 701 { .type = PF_RT_MAX_MSS, .off = _OUT(max_mss), .cb = nlattr_get_uint16 }, 702 { .type = PF_RT_SCRUB_FLAGS, .off = _OUT(scrub_flags), .cb = nlattr_get_uint16 }, 703 { .type = PF_RT_UID, .off = _OUT(uid), .arg = &rule_uid_parser, .cb = nlattr_get_nested }, 704 { .type = PF_RT_GID, .off = _OUT(gid), .arg = &rule_uid_parser, .cb = nlattr_get_nested }, 705 { .type = PF_RT_RULE_FLAG, .off = _OUT(rule_flag), .cb = nlattr_get_uint32 }, 706 { .type = PF_RT_ACTION, .off = _OUT(action), .cb = nlattr_get_uint8 }, 707 { .type = PF_RT_DIRECTION, .off = _OUT(direction), .cb = nlattr_get_uint8 }, 708 { .type = PF_RT_LOG, .off = _OUT(log), .cb = nlattr_get_uint8 }, 709 { .type = PF_RT_LOGIF, .off = _OUT(logif), .cb = nlattr_get_uint8 }, 710 { .type = PF_RT_QUICK, .off = _OUT(quick), .cb = nlattr_get_uint8 }, 711 { .type = PF_RT_IF_NOT, .off = _OUT(ifnot), .cb = nlattr_get_uint8 }, 712 { .type = PF_RT_MATCH_TAG_NOT, .off = _OUT(match_tag_not), .cb = nlattr_get_uint8 }, 713 { .type = PF_RT_NATPASS, .off = _OUT(natpass), .cb = nlattr_get_uint8 }, 714 { .type = PF_RT_KEEP_STATE, .off = _OUT(keep_state), .cb = nlattr_get_uint8 }, 715 { .type = PF_RT_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 716 { .type = PF_RT_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint8 }, 717 { .type = PF_RT_TYPE, .off = _OUT(type), .cb = nlattr_get_uint8 }, 718 { .type = PF_RT_CODE, .off = _OUT(code), .cb = nlattr_get_uint8 }, 719 { .type = PF_RT_FLAGS, .off = _OUT(flags), .cb = nlattr_get_uint8 }, 720 { .type = PF_RT_FLAGSET, .off = _OUT(flagset), .cb = nlattr_get_uint8 }, 721 { .type = PF_RT_MIN_TTL, .off = _OUT(min_ttl), .cb = nlattr_get_uint8 }, 722 { .type = PF_RT_ALLOW_OPTS, .off = _OUT(allow_opts), .cb = nlattr_get_uint8 }, 723 { .type = PF_RT_RT, .off = _OUT(rt), .cb = nlattr_get_uint8 }, 724 { .type = PF_RT_RETURN_TTL, .off = _OUT(return_ttl), .cb = nlattr_get_uint8 }, 725 { .type = PF_RT_TOS, .off = _OUT(tos), .cb = nlattr_get_uint8 }, 726 { .type = PF_RT_SET_TOS, .off = _OUT(set_tos), .cb = nlattr_get_uint8 }, 727 { .type = PF_RT_ANCHOR_RELATIVE, .off = _OUT(anchor_relative), .cb = nlattr_get_uint8 }, 728 { .type = PF_RT_ANCHOR_WILDCARD, .off = _OUT(anchor_wildcard), .cb = nlattr_get_uint8 }, 729 { .type = PF_RT_FLUSH, .off = _OUT(flush), .cb = nlattr_get_uint8 }, 730 { .type = PF_RT_PRIO, .off = _OUT(prio), .cb = nlattr_get_uint8 }, 731 { .type = PF_RT_SET_PRIO, .off = _OUT(set_prio[0]), .cb = nlattr_get_uint8 }, 732 { .type = PF_RT_SET_PRIO_REPLY, .off = _OUT(set_prio[1]), .cb = nlattr_get_uint8 }, 733 { .type = PF_RT_DIVERT_ADDRESS, .off = _OUT(divert.addr), .cb = nlattr_get_in6_addr }, 734 { .type = PF_RT_DIVERT_PORT, .off = _OUT(divert.port), .cb = nlattr_get_uint16 }, 735 { .type = PF_RT_RCV_IFNAME, .off = _OUT(rcv_ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 736 { .type = PF_RT_MAX_SRC_CONN, .off = _OUT(max_src_conn), .cb = nlattr_get_uint32 }, 737 { .type = PF_RT_RPOOL_NAT, .off = _OUT(nat), .arg = &pool_parser, .cb = nlattr_get_nested }, 738 { .type = PF_RT_NAF, .off = _OUT(naf), .cb = nlattr_get_uint8 }, 739 }; 740 NL_DECLARE_ATTR_PARSER(rule_parser, nla_p_rule); 741 #undef _OUT 742 struct nl_parsed_addrule { 743 struct pf_krule *rule; 744 uint32_t ticket; 745 uint32_t pool_ticket; 746 char *anchor; 747 char *anchor_call; 748 }; 749 #define _OUT(_field) offsetof(struct nl_parsed_addrule, _field) 750 static const struct nlattr_parser nla_p_addrule[] = { 751 { .type = PF_ART_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, 752 { .type = PF_ART_POOL_TICKET, .off = _OUT(pool_ticket), .cb = nlattr_get_uint32 }, 753 { .type = PF_ART_ANCHOR, .off = _OUT(anchor), .cb = nlattr_get_string }, 754 { .type = PF_ART_ANCHOR_CALL, .off = _OUT(anchor_call), .cb = nlattr_get_string }, 755 { .type = PF_ART_RULE, .off = _OUT(rule), .arg = &rule_parser, .cb = nlattr_get_nested_ptr } 756 }; 757 #undef _OUT 758 NL_DECLARE_PARSER(addrule_parser, struct genlmsghdr, nlf_p_empty, nla_p_addrule); 759 760 static int 761 pf_handle_addrule(struct nlmsghdr *hdr, struct nl_pstate *npt) 762 { 763 int error; 764 struct nl_parsed_addrule attrs = {}; 765 766 attrs.rule = pf_krule_alloc(); 767 768 error = nl_parse_nlmsg(hdr, &addrule_parser, npt, &attrs); 769 if (error != 0) { 770 pf_free_rule(attrs.rule); 771 return (error); 772 } 773 774 error = pf_ioctl_addrule(attrs.rule, attrs.ticket, attrs.pool_ticket, 775 attrs.anchor, attrs.anchor_call, nlp_get_cred(npt->nlp)->cr_uid, 776 hdr->nlmsg_pid); 777 778 return (error); 779 } 780 781 #define _OUT(_field) offsetof(struct pfioc_rule, _field) 782 static const struct nlattr_parser nla_p_getrules[] = { 783 { .type = PF_GR_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 784 { .type = PF_GR_ACTION, .off = _OUT(rule.action), .cb = nlattr_get_uint8 }, 785 }; 786 #undef _OUT 787 NL_DECLARE_PARSER(getrules_parser, struct genlmsghdr, nlf_p_empty, nla_p_getrules); 788 789 static int 790 pf_handle_getrules(struct nlmsghdr *hdr, struct nl_pstate *npt) 791 { 792 struct pfioc_rule attrs = {}; 793 int error; 794 struct nl_writer *nw = npt->nw; 795 struct genlmsghdr *ghdr_new; 796 797 error = nl_parse_nlmsg(hdr, &getrules_parser, npt, &attrs); 798 if (error != 0) 799 return (error); 800 801 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 802 return (ENOMEM); 803 804 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 805 ghdr_new->cmd = PFNL_CMD_GETRULES; 806 ghdr_new->version = 0; 807 ghdr_new->reserved = 0; 808 809 error = pf_ioctl_getrules(&attrs); 810 if (error != 0) 811 goto out; 812 813 nlattr_add_u32(nw, PF_GR_NR, attrs.nr); 814 nlattr_add_u32(nw, PF_GR_TICKET, attrs.ticket); 815 816 if (!nlmsg_end(nw)) { 817 error = ENOMEM; 818 goto out; 819 } 820 821 return (0); 822 823 out: 824 nlmsg_abort(nw); 825 return (error); 826 } 827 828 struct nl_parsed_get_rule { 829 char anchor[MAXPATHLEN]; 830 uint8_t action; 831 uint32_t nr; 832 uint32_t ticket; 833 uint8_t clear; 834 }; 835 #define _OUT(_field) offsetof(struct nl_parsed_get_rule, _field) 836 static const struct nlattr_parser nla_p_getrule[] = { 837 { .type = PF_GR_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 838 { .type = PF_GR_ACTION, .off = _OUT(action), .cb = nlattr_get_uint8 }, 839 { .type = PF_GR_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 840 { .type = PF_GR_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, 841 { .type = PF_GR_CLEAR, .off = _OUT(clear), .cb = nlattr_get_uint8 }, 842 }; 843 #undef _OUT 844 NL_DECLARE_PARSER(getrule_parser, struct genlmsghdr, nlf_p_empty, nla_p_getrule); 845 846 static int 847 pf_handle_getrule(struct nlmsghdr *hdr, struct nl_pstate *npt) 848 { 849 char anchor_call[MAXPATHLEN]; 850 struct nl_parsed_get_rule attrs = {}; 851 struct nl_writer *nw = npt->nw; 852 struct genlmsghdr *ghdr_new; 853 struct pf_kruleset *ruleset; 854 struct pf_krule *rule; 855 int rs_num; 856 int error; 857 858 error = nl_parse_nlmsg(hdr, &getrule_parser, npt, &attrs); 859 if (error != 0) 860 return (error); 861 862 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 863 return (ENOMEM); 864 865 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 866 ghdr_new->cmd = PFNL_CMD_GETRULE; 867 ghdr_new->version = 0; 868 ghdr_new->reserved = 0; 869 870 PF_RULES_WLOCK(); 871 ruleset = pf_find_kruleset(attrs.anchor); 872 if (ruleset == NULL) { 873 PF_RULES_WUNLOCK(); 874 error = ENOENT; 875 goto out; 876 } 877 878 rs_num = pf_get_ruleset_number(attrs.action); 879 if (rs_num >= PF_RULESET_MAX) { 880 PF_RULES_WUNLOCK(); 881 error = EINVAL; 882 goto out; 883 } 884 885 if (attrs.ticket != ruleset->rules[rs_num].active.ticket) { 886 PF_RULES_WUNLOCK(); 887 error = EBUSY; 888 goto out; 889 } 890 891 rule = TAILQ_FIRST(ruleset->rules[rs_num].active.ptr); 892 while ((rule != NULL) && (rule->nr != attrs.nr)) 893 rule = TAILQ_NEXT(rule, entries); 894 if (rule == NULL) { 895 PF_RULES_WUNLOCK(); 896 error = EBUSY; 897 goto out; 898 } 899 900 nlattr_add_rule_addr(nw, PF_RT_SRC, &rule->src); 901 nlattr_add_rule_addr(nw, PF_RT_DST, &rule->dst); 902 nlattr_add_u32(nw, PF_RT_RIDENTIFIER, rule->ridentifier); 903 nlattr_add_labels(nw, PF_RT_LABELS, rule); 904 nlattr_add_string(nw, PF_RT_IFNAME, rule->ifname); 905 nlattr_add_string(nw, PF_RT_QNAME, rule->qname); 906 nlattr_add_string(nw, PF_RT_PQNAME, rule->pqname); 907 nlattr_add_string(nw, PF_RT_TAGNAME, rule->tagname); 908 nlattr_add_string(nw, PF_RT_MATCH_TAGNAME, rule->match_tagname); 909 nlattr_add_string(nw, PF_RT_OVERLOAD_TBLNAME, rule->overload_tblname); 910 nlattr_add_pool(nw, PF_RT_RPOOL_RDR, &rule->rdr); 911 nlattr_add_pool(nw, PF_RT_RPOOL_NAT, &rule->nat); 912 nlattr_add_u32(nw, PF_RT_OS_FINGERPRINT, rule->os_fingerprint); 913 nlattr_add_u32(nw, PF_RT_RTABLEID, rule->rtableid); 914 nlattr_add_timeout(nw, PF_RT_TIMEOUT, rule->timeout); 915 nlattr_add_u32(nw, PF_RT_MAX_STATES, rule->max_states); 916 nlattr_add_u32(nw, PF_RT_MAX_SRC_NODES, rule->max_src_nodes); 917 nlattr_add_u32(nw, PF_RT_MAX_SRC_STATES, rule->max_src_states); 918 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN, rule->max_src_conn); 919 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN_RATE_LIMIT, rule->max_src_conn_rate.limit); 920 nlattr_add_u32(nw, PF_RT_MAX_SRC_CONN_RATE_SECS, rule->max_src_conn_rate.seconds); 921 922 nlattr_add_u16(nw, PF_RT_DNPIPE, rule->dnpipe); 923 nlattr_add_u16(nw, PF_RT_DNRPIPE, rule->dnrpipe); 924 nlattr_add_u32(nw, PF_RT_DNFLAGS, rule->free_flags); 925 926 nlattr_add_u32(nw, PF_RT_NR, rule->nr); 927 nlattr_add_u32(nw, PF_RT_PROB, rule->prob); 928 nlattr_add_u32(nw, PF_RT_CUID, rule->cuid); 929 nlattr_add_u32(nw, PF_RT_CPID, rule->cpid); 930 931 nlattr_add_u16(nw, PF_RT_RETURN_ICMP, rule->return_icmp); 932 nlattr_add_u16(nw, PF_RT_RETURN_ICMP6, rule->return_icmp6); 933 nlattr_add_u16(nw, PF_RT_RETURN_ICMP6, rule->return_icmp6); 934 nlattr_add_u16(nw, PF_RT_MAX_MSS, rule->max_mss); 935 nlattr_add_u16(nw, PF_RT_SCRUB_FLAGS, rule->scrub_flags); 936 937 nlattr_add_rule_uid(nw, PF_RT_UID, &rule->uid); 938 nlattr_add_rule_uid(nw, PF_RT_GID, (const struct pf_rule_uid *)&rule->gid); 939 940 nlattr_add_string(nw, PF_RT_RCV_IFNAME, rule->rcv_ifname); 941 942 nlattr_add_u32(nw, PF_RT_RULE_FLAG, rule->rule_flag); 943 nlattr_add_u8(nw, PF_RT_ACTION, rule->action); 944 nlattr_add_u8(nw, PF_RT_DIRECTION, rule->direction); 945 nlattr_add_u8(nw, PF_RT_LOG, rule->log); 946 nlattr_add_u8(nw, PF_RT_LOGIF, rule->logif); 947 nlattr_add_u8(nw, PF_RT_QUICK, rule->quick); 948 nlattr_add_u8(nw, PF_RT_IF_NOT, rule->ifnot); 949 nlattr_add_u8(nw, PF_RT_MATCH_TAG_NOT, rule->match_tag_not); 950 nlattr_add_u8(nw, PF_RT_NATPASS, rule->natpass); 951 nlattr_add_u8(nw, PF_RT_KEEP_STATE, rule->keep_state); 952 953 nlattr_add_u8(nw, PF_RT_AF, rule->af); 954 nlattr_add_u8(nw, PF_RT_NAF, rule->naf); 955 nlattr_add_u8(nw, PF_RT_PROTO, rule->proto); 956 nlattr_add_u8(nw, PF_RT_TYPE, rule->type); 957 nlattr_add_u8(nw, PF_RT_CODE, rule->code); 958 nlattr_add_u8(nw, PF_RT_FLAGS, rule->flags); 959 nlattr_add_u8(nw, PF_RT_FLAGSET, rule->flagset); 960 nlattr_add_u8(nw, PF_RT_MIN_TTL, rule->min_ttl); 961 nlattr_add_u8(nw, PF_RT_ALLOW_OPTS, rule->allow_opts); 962 nlattr_add_u8(nw, PF_RT_RT, rule->rt); 963 nlattr_add_u8(nw, PF_RT_RETURN_TTL, rule->return_ttl); 964 nlattr_add_u8(nw, PF_RT_TOS, rule->tos); 965 nlattr_add_u8(nw, PF_RT_SET_TOS, rule->set_tos); 966 nlattr_add_u8(nw, PF_RT_ANCHOR_RELATIVE, rule->anchor_relative); 967 nlattr_add_u8(nw, PF_RT_ANCHOR_WILDCARD, rule->anchor_wildcard); 968 nlattr_add_u8(nw, PF_RT_FLUSH, rule->flush); 969 nlattr_add_u8(nw, PF_RT_PRIO, rule->prio); 970 nlattr_add_u8(nw, PF_RT_SET_PRIO, rule->set_prio[0]); 971 nlattr_add_u8(nw, PF_RT_SET_PRIO_REPLY, rule->set_prio[1]); 972 973 nlattr_add_in6_addr(nw, PF_RT_DIVERT_ADDRESS, &rule->divert.addr.v6); 974 nlattr_add_u16(nw, PF_RT_DIVERT_PORT, rule->divert.port); 975 976 nlattr_add_u64(nw, PF_RT_PACKETS_IN, pf_counter_u64_fetch(&rule->packets[0])); 977 nlattr_add_u64(nw, PF_RT_PACKETS_OUT, pf_counter_u64_fetch(&rule->packets[1])); 978 nlattr_add_u64(nw, PF_RT_BYTES_IN, pf_counter_u64_fetch(&rule->bytes[0])); 979 nlattr_add_u64(nw, PF_RT_BYTES_OUT, pf_counter_u64_fetch(&rule->bytes[1])); 980 nlattr_add_u64(nw, PF_RT_EVALUATIONS, pf_counter_u64_fetch(&rule->evaluations)); 981 nlattr_add_u64(nw, PF_RT_TIMESTAMP, pf_get_timestamp(rule)); 982 nlattr_add_u64(nw, PF_RT_STATES_CUR, counter_u64_fetch(rule->states_cur)); 983 nlattr_add_u64(nw, PF_RT_STATES_TOTAL, counter_u64_fetch(rule->states_tot)); 984 nlattr_add_u64(nw, PF_RT_SRC_NODES, counter_u64_fetch(rule->src_nodes)); 985 986 error = pf_kanchor_copyout(ruleset, rule, anchor_call, sizeof(anchor_call)); 987 MPASS(error == 0); 988 989 nlattr_add_string(nw, PF_RT_ANCHOR_CALL, anchor_call); 990 991 if (attrs.clear) 992 pf_krule_clear_counters(rule); 993 994 PF_RULES_WUNLOCK(); 995 996 if (!nlmsg_end(nw)) { 997 error = ENOMEM; 998 goto out; 999 } 1000 1001 return (0); 1002 out: 1003 nlmsg_abort(nw); 1004 return (error); 1005 } 1006 1007 #define _OUT(_field) offsetof(struct pf_kstate_kill, _field) 1008 static const struct nlattr_parser nla_p_clear_states[] = { 1009 { .type = PF_CS_CMP_ID, .off = _OUT(psk_pfcmp.id), .cb = nlattr_get_uint64 }, 1010 { .type = PF_CS_CMP_CREATORID, .off = _OUT(psk_pfcmp.creatorid), .cb = nlattr_get_uint32 }, 1011 { .type = PF_CS_CMP_DIR, .off = _OUT(psk_pfcmp.direction), .cb = nlattr_get_uint8 }, 1012 { .type = PF_CS_AF, .off = _OUT(psk_af), .cb = nlattr_get_uint8 }, 1013 { .type = PF_CS_PROTO, .off = _OUT(psk_proto), .cb = nlattr_get_uint8 }, 1014 { .type = PF_CS_SRC, .off = _OUT(psk_src), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, 1015 { .type = PF_CS_DST, .off = _OUT(psk_dst), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, 1016 { .type = PF_CS_RT_ADDR, .off = _OUT(psk_rt_addr), .arg = &rule_addr_parser, .cb = nlattr_get_nested }, 1017 { .type = PF_CS_IFNAME, .off = _OUT(psk_ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 1018 { .type = PF_CS_LABEL, .off = _OUT(psk_label), .arg = (void *)PF_RULE_LABEL_SIZE, .cb = nlattr_get_chara }, 1019 { .type = PF_CS_KILL_MATCH, .off = _OUT(psk_kill_match), .cb = nlattr_get_bool }, 1020 { .type = PF_CS_NAT, .off = _OUT(psk_nat), .cb = nlattr_get_bool }, 1021 }; 1022 #undef _OUT 1023 NL_DECLARE_PARSER(clear_states_parser, struct genlmsghdr, nlf_p_empty, nla_p_clear_states); 1024 1025 static int 1026 pf_handle_killclear_states(struct nlmsghdr *hdr, struct nl_pstate *npt, int cmd) 1027 { 1028 struct pf_kstate_kill kill = {}; 1029 struct epoch_tracker et; 1030 struct nl_writer *nw = npt->nw; 1031 struct genlmsghdr *ghdr_new; 1032 int error; 1033 unsigned int killed = 0; 1034 1035 error = nl_parse_nlmsg(hdr, &clear_states_parser, npt, &kill); 1036 if (error != 0) 1037 return (error); 1038 1039 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1040 return (ENOMEM); 1041 1042 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1043 ghdr_new->cmd = cmd; 1044 ghdr_new->version = 0; 1045 ghdr_new->reserved = 0; 1046 1047 NET_EPOCH_ENTER(et); 1048 if (cmd == PFNL_CMD_KILLSTATES) 1049 pf_killstates(&kill, &killed); 1050 else 1051 killed = pf_clear_states(&kill); 1052 NET_EPOCH_EXIT(et); 1053 1054 nlattr_add_u32(nw, PF_CS_KILLED, killed); 1055 1056 if (! nlmsg_end(nw)) { 1057 error = ENOMEM; 1058 goto out; 1059 } 1060 1061 return (0); 1062 1063 out: 1064 nlmsg_abort(nw); 1065 return (error); 1066 } 1067 1068 static int 1069 pf_handle_clear_states(struct nlmsghdr *hdr, struct nl_pstate *npt) 1070 { 1071 return (pf_handle_killclear_states(hdr, npt, PFNL_CMD_CLRSTATES)); 1072 } 1073 1074 static int 1075 pf_handle_kill_states(struct nlmsghdr *hdr, struct nl_pstate *npt) 1076 { 1077 return (pf_handle_killclear_states(hdr, npt, PFNL_CMD_KILLSTATES)); 1078 } 1079 1080 struct nl_parsed_set_statusif { 1081 char ifname[IFNAMSIZ]; 1082 }; 1083 #define _OUT(_field) offsetof(struct nl_parsed_set_statusif, _field) 1084 static const struct nlattr_parser nla_p_set_statusif[] = { 1085 { .type = PF_SS_IFNAME, .off = _OUT(ifname), .arg = (const void *)IFNAMSIZ, .cb = nlattr_get_chara }, 1086 }; 1087 #undef _OUT 1088 NL_DECLARE_PARSER(set_statusif_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_statusif); 1089 1090 static int 1091 pf_handle_set_statusif(struct nlmsghdr *hdr, struct nl_pstate *npt) 1092 { 1093 int error; 1094 struct nl_parsed_set_statusif attrs = {}; 1095 1096 error = nl_parse_nlmsg(hdr, &set_statusif_parser, npt, &attrs); 1097 if (error != 0) 1098 return (error); 1099 1100 PF_RULES_WLOCK(); 1101 strlcpy(V_pf_status.ifname, attrs.ifname, IFNAMSIZ); 1102 PF_RULES_WUNLOCK(); 1103 1104 return (0); 1105 } 1106 1107 static bool 1108 nlattr_add_counters(struct nl_writer *nw, int attr, size_t number, char **names, 1109 counter_u64_t *counters) 1110 { 1111 for (int i = 0; i < number; i++) { 1112 int off = nlattr_add_nested(nw, attr); 1113 nlattr_add_u32(nw, PF_C_ID, i); 1114 nlattr_add_string(nw, PF_C_NAME, names[i]); 1115 nlattr_add_u64(nw, PF_C_COUNTER, counter_u64_fetch(counters[i])); 1116 nlattr_set_len(nw, off); 1117 } 1118 1119 return (true); 1120 } 1121 1122 static bool 1123 nlattr_add_fcounters(struct nl_writer *nw, int attr, size_t number, char **names, 1124 struct pf_counter_u64 *counters) 1125 { 1126 for (int i = 0; i < number; i++) { 1127 int off = nlattr_add_nested(nw, attr); 1128 nlattr_add_u32(nw, PF_C_ID, i); 1129 nlattr_add_string(nw, PF_C_NAME, names[i]); 1130 nlattr_add_u64(nw, PF_C_COUNTER, pf_counter_u64_fetch(&counters[i])); 1131 nlattr_set_len(nw, off); 1132 } 1133 1134 return (true); 1135 } 1136 1137 static bool 1138 nlattr_add_u64_array(struct nl_writer *nw, int attr, size_t number, uint64_t *array) 1139 { 1140 int off = nlattr_add_nested(nw, attr); 1141 1142 for (size_t i = 0; i < number; i++) 1143 nlattr_add_u64(nw, 0, array[i]); 1144 1145 nlattr_set_len(nw, off); 1146 1147 return (true); 1148 } 1149 1150 static int 1151 pf_handle_get_status(struct nlmsghdr *hdr, struct nl_pstate *npt) 1152 { 1153 struct pf_status s; 1154 struct nl_writer *nw = npt->nw; 1155 struct genlmsghdr *ghdr_new; 1156 char *pf_reasons[PFRES_MAX+1] = PFRES_NAMES; 1157 char *pf_lcounter[KLCNT_MAX+1] = KLCNT_NAMES; 1158 char *pf_fcounter[FCNT_MAX+1] = FCNT_NAMES; 1159 int error; 1160 1161 PF_RULES_RLOCK_TRACKER; 1162 1163 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1164 return (ENOMEM); 1165 1166 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1167 ghdr_new->cmd = PFNL_CMD_GET_STATUS; 1168 ghdr_new->version = 0; 1169 ghdr_new->reserved = 0; 1170 1171 PF_RULES_RLOCK(); 1172 1173 nlattr_add_string(nw, PF_GS_IFNAME, V_pf_status.ifname); 1174 nlattr_add_bool(nw, PF_GS_RUNNING, V_pf_status.running); 1175 nlattr_add_u32(nw, PF_GS_SINCE, V_pf_status.since); 1176 nlattr_add_u32(nw, PF_GS_DEBUG, V_pf_status.debug); 1177 nlattr_add_u32(nw, PF_GS_HOSTID, ntohl(V_pf_status.hostid)); 1178 nlattr_add_u32(nw, PF_GS_STATES, V_pf_status.states); 1179 nlattr_add_u32(nw, PF_GS_SRC_NODES, V_pf_status.src_nodes); 1180 nlattr_add_u32(nw, PF_GS_REASSEMBLE, V_pf_status.reass); 1181 nlattr_add_u32(nw, PF_GS_SYNCOOKIES_ACTIVE, V_pf_status.syncookies_active); 1182 1183 nlattr_add_counters(nw, PF_GS_COUNTERS, PFRES_MAX, pf_reasons, 1184 V_pf_status.counters); 1185 nlattr_add_counters(nw, PF_GS_LCOUNTERS, KLCNT_MAX, pf_lcounter, 1186 V_pf_status.lcounters); 1187 nlattr_add_fcounters(nw, PF_GS_FCOUNTERS, FCNT_MAX, pf_fcounter, 1188 V_pf_status.fcounters); 1189 nlattr_add_counters(nw, PF_GS_SCOUNTERS, SCNT_MAX, pf_fcounter, 1190 V_pf_status.scounters); 1191 1192 pfi_update_status(V_pf_status.ifname, &s); 1193 nlattr_add_u64_array(nw, PF_GS_BCOUNTERS, 2 * 2, (uint64_t *)s.bcounters); 1194 nlattr_add_u64_array(nw, PF_GS_PCOUNTERS, 2 * 2 * 2, (uint64_t *)s.pcounters); 1195 1196 nlattr_add(nw, PF_GS_CHKSUM, PF_MD5_DIGEST_LENGTH, V_pf_status.pf_chksum); 1197 1198 PF_RULES_RUNLOCK(); 1199 1200 if (!nlmsg_end(nw)) { 1201 error = ENOMEM; 1202 goto out; 1203 } 1204 1205 return (0); 1206 1207 out: 1208 nlmsg_abort(nw); 1209 return (error); 1210 } 1211 1212 static int 1213 pf_handle_clear_status(struct nlmsghdr *hdr, struct nl_pstate *npt) 1214 { 1215 pf_ioctl_clear_status(); 1216 1217 return (0); 1218 } 1219 1220 struct pf_nl_natlook { 1221 sa_family_t af; 1222 uint8_t direction; 1223 uint8_t proto; 1224 struct pf_addr src; 1225 struct pf_addr dst; 1226 uint16_t sport; 1227 uint16_t dport; 1228 }; 1229 1230 #define _OUT(_field) offsetof(struct pf_nl_natlook, _field) 1231 static const struct nlattr_parser nla_p_natlook[] = { 1232 { .type = PF_NL_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 1233 { .type = PF_NL_DIRECTION, .off = _OUT(direction), .cb = nlattr_get_uint8 }, 1234 { .type = PF_NL_PROTO, .off = _OUT(proto), .cb = nlattr_get_uint8 }, 1235 { .type = PF_NL_SRC_ADDR, .off = _OUT(src), .cb = nlattr_get_in6_addr }, 1236 { .type = PF_NL_DST_ADDR, .off = _OUT(dst), .cb = nlattr_get_in6_addr }, 1237 { .type = PF_NL_SRC_PORT, .off = _OUT(sport), .cb = nlattr_get_uint16 }, 1238 { .type = PF_NL_DST_PORT, .off = _OUT(dport), .cb = nlattr_get_uint16 }, 1239 }; 1240 #undef _OUT 1241 NL_DECLARE_PARSER(natlook_parser, struct genlmsghdr, nlf_p_empty, nla_p_natlook); 1242 1243 static int 1244 pf_handle_natlook(struct nlmsghdr *hdr, struct nl_pstate *npt) 1245 { 1246 struct pf_nl_natlook attrs = {}; 1247 struct pf_state_key_cmp key = {}; 1248 struct nl_writer *nw = npt->nw; 1249 struct pf_state_key *sk; 1250 struct pf_kstate *state; 1251 struct genlmsghdr *ghdr_new; 1252 int error, m = 0; 1253 int sidx, didx; 1254 1255 error = nl_parse_nlmsg(hdr, &natlook_parser, npt, &attrs); 1256 if (error != 0) 1257 return (error); 1258 1259 if (attrs.proto == 0 || 1260 PF_AZERO(&attrs.src, attrs.af) || 1261 PF_AZERO(&attrs.dst, attrs.af) || 1262 ((attrs.proto == IPPROTO_TCP || attrs.proto == IPPROTO_UDP) && 1263 (attrs.sport == 0 || attrs.dport == 0))) 1264 return (EINVAL); 1265 1266 /* NATLOOK src and dst are reversed, so reverse sidx/didx */ 1267 sidx = (attrs.direction == PF_IN) ? 1 : 0; 1268 didx = (attrs.direction == PF_IN) ? 0 : 1; 1269 1270 key.af = attrs.af; 1271 key.proto = attrs.proto; 1272 PF_ACPY(&key.addr[sidx], &attrs.src, attrs.af); 1273 key.port[sidx] = attrs.sport; 1274 PF_ACPY(&key.addr[didx], &attrs.dst, attrs.af); 1275 key.port[didx] = attrs.dport; 1276 1277 state = pf_find_state_all(&key, attrs.direction, &m); 1278 if (state == NULL) 1279 return (ENOENT); 1280 if (m > 1) { 1281 PF_STATE_UNLOCK(state); 1282 return (E2BIG); 1283 } 1284 1285 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) { 1286 PF_STATE_UNLOCK(state); 1287 return (ENOMEM); 1288 } 1289 1290 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1291 ghdr_new->cmd = PFNL_CMD_NATLOOK; 1292 ghdr_new->version = 0; 1293 ghdr_new->reserved = 0; 1294 1295 sk = state->key[sidx]; 1296 1297 nlattr_add_in6_addr(nw, PF_NL_SRC_ADDR, &sk->addr[sidx].v6); 1298 nlattr_add_in6_addr(nw, PF_NL_DST_ADDR, &sk->addr[didx].v6); 1299 nlattr_add_u16(nw, PF_NL_SRC_PORT, sk->port[sidx]); 1300 nlattr_add_u16(nw, PF_NL_DST_PORT, sk->port[didx]); 1301 1302 PF_STATE_UNLOCK(state); 1303 1304 if (!nlmsg_end(nw)) { 1305 nlmsg_abort(nw); 1306 return (ENOMEM); 1307 } 1308 1309 return (0); 1310 } 1311 1312 struct pf_nl_set_debug 1313 { 1314 uint32_t level; 1315 }; 1316 #define _OUT(_field) offsetof(struct pf_nl_set_debug, _field) 1317 static const struct nlattr_parser nla_p_set_debug[] = { 1318 { .type = PF_SD_LEVEL, .off = _OUT(level), .cb = nlattr_get_uint32 }, 1319 }; 1320 #undef _OUT 1321 NL_DECLARE_PARSER(set_debug_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_debug); 1322 1323 static int 1324 pf_handle_set_debug(struct nlmsghdr *hdr, struct nl_pstate *npt) 1325 { 1326 struct pf_nl_set_debug attrs = {}; 1327 int error; 1328 1329 error = nl_parse_nlmsg(hdr, &set_debug_parser, npt, &attrs); 1330 if (error != 0) 1331 return (error); 1332 1333 PF_RULES_WLOCK(); 1334 V_pf_status.debug = attrs.level; 1335 PF_RULES_WUNLOCK(); 1336 1337 return (0); 1338 } 1339 1340 struct pf_nl_set_timeout 1341 { 1342 uint32_t timeout; 1343 uint32_t seconds; 1344 }; 1345 #define _OUT(_field) offsetof(struct pf_nl_set_timeout, _field) 1346 static const struct nlattr_parser nla_p_set_timeout[] = { 1347 { .type = PF_TO_TIMEOUT, .off = _OUT(timeout), .cb = nlattr_get_uint32 }, 1348 { .type = PF_TO_SECONDS, .off = _OUT(seconds), .cb = nlattr_get_uint32 }, 1349 }; 1350 #undef _OUT 1351 NL_DECLARE_PARSER(set_timeout_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_timeout); 1352 1353 static int 1354 pf_handle_set_timeout(struct nlmsghdr *hdr, struct nl_pstate *npt) 1355 { 1356 struct pf_nl_set_timeout attrs = {}; 1357 int error; 1358 1359 error = nl_parse_nlmsg(hdr, &set_timeout_parser, npt, &attrs); 1360 if (error != 0) 1361 return (error); 1362 1363 return (pf_ioctl_set_timeout(attrs.timeout, attrs.seconds, NULL)); 1364 } 1365 1366 static int 1367 pf_handle_get_timeout(struct nlmsghdr *hdr, struct nl_pstate *npt) 1368 { 1369 struct pf_nl_set_timeout attrs = {}; 1370 struct nl_writer *nw = npt->nw; 1371 struct genlmsghdr *ghdr_new; 1372 int error; 1373 1374 error = nl_parse_nlmsg(hdr, &set_timeout_parser, npt, &attrs); 1375 if (error != 0) 1376 return (error); 1377 1378 error = pf_ioctl_get_timeout(attrs.timeout, &attrs.seconds); 1379 if (error != 0) 1380 return (error); 1381 1382 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1383 return (ENOMEM); 1384 1385 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1386 ghdr_new->cmd = PFNL_CMD_GET_TIMEOUT; 1387 ghdr_new->version = 0; 1388 ghdr_new->reserved = 0; 1389 1390 nlattr_add_u32(nw, PF_TO_SECONDS, attrs.seconds); 1391 1392 if (!nlmsg_end(nw)) { 1393 nlmsg_abort(nw); 1394 return (ENOMEM); 1395 } 1396 1397 return (0); 1398 } 1399 1400 struct pf_nl_set_limit 1401 { 1402 uint32_t index; 1403 uint32_t limit; 1404 }; 1405 #define _OUT(_field) offsetof(struct pf_nl_set_limit, _field) 1406 static const struct nlattr_parser nla_p_set_limit[] = { 1407 { .type = PF_LI_INDEX, .off = _OUT(index), .cb = nlattr_get_uint32 }, 1408 { .type = PF_LI_LIMIT, .off = _OUT(limit), .cb = nlattr_get_uint32 }, 1409 }; 1410 #undef _OUT 1411 NL_DECLARE_PARSER(set_limit_parser, struct genlmsghdr, nlf_p_empty, nla_p_set_limit); 1412 1413 static int 1414 pf_handle_set_limit(struct nlmsghdr *hdr, struct nl_pstate *npt) 1415 { 1416 struct pf_nl_set_limit attrs = {}; 1417 int error; 1418 1419 error = nl_parse_nlmsg(hdr, &set_limit_parser, npt, &attrs); 1420 if (error != 0) 1421 return (error); 1422 1423 return (pf_ioctl_set_limit(attrs.index, attrs.limit, NULL)); 1424 } 1425 1426 static int 1427 pf_handle_get_limit(struct nlmsghdr *hdr, struct nl_pstate *npt) 1428 { 1429 struct pf_nl_set_limit attrs = {}; 1430 struct nl_writer *nw = npt->nw; 1431 struct genlmsghdr *ghdr_new; 1432 int error; 1433 1434 error = nl_parse_nlmsg(hdr, &set_limit_parser, npt, &attrs); 1435 if (error != 0) 1436 return (error); 1437 1438 error = pf_ioctl_get_limit(attrs.index, &attrs.limit); 1439 if (error != 0) 1440 return (error); 1441 1442 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1443 return (ENOMEM); 1444 1445 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1446 ghdr_new->cmd = PFNL_CMD_GET_LIMIT; 1447 ghdr_new->version = 0; 1448 ghdr_new->reserved = 0; 1449 1450 nlattr_add_u32(nw, PF_LI_LIMIT, attrs.limit); 1451 1452 if (!nlmsg_end(nw)) { 1453 nlmsg_abort(nw); 1454 return (ENOMEM); 1455 } 1456 1457 return (0); 1458 } 1459 1460 static int 1461 pf_handle_begin_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt) 1462 { 1463 struct nl_writer *nw = npt->nw; 1464 struct genlmsghdr *ghdr_new; 1465 uint32_t ticket; 1466 int error; 1467 1468 error = pf_ioctl_begin_addrs(&ticket); 1469 if (error != 0) 1470 return (error); 1471 1472 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1473 return (ENOMEM); 1474 1475 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1476 ghdr_new->cmd = PFNL_CMD_BEGIN_ADDRS; 1477 ghdr_new->version = 0; 1478 ghdr_new->reserved = 0; 1479 1480 nlattr_add_u32(nw, PF_BA_TICKET, ticket); 1481 1482 if (!nlmsg_end(nw)) { 1483 nlmsg_abort(nw); 1484 return (ENOMEM); 1485 } 1486 1487 return (0); 1488 } 1489 1490 static bool 1491 nlattr_add_pool_addr(struct nl_writer *nw, int attrtype, struct pf_pooladdr *a) 1492 { 1493 int off; 1494 1495 off = nlattr_add_nested(nw, attrtype); 1496 1497 nlattr_add_addr_wrap(nw, PF_PA_ADDR, &a->addr); 1498 nlattr_add_string(nw, PF_PA_IFNAME, a->ifname); 1499 1500 nlattr_set_len(nw, off); 1501 1502 return (true); 1503 } 1504 1505 #define _OUT(_field) offsetof(struct pf_pooladdr, _field) 1506 static const struct nlattr_parser nla_p_pool_addr[] = { 1507 { .type = PF_PA_ADDR, .off = _OUT(addr), .arg = &addr_wrap_parser, .cb = nlattr_get_nested }, 1508 { .type = PF_PA_IFNAME, .off = _OUT(ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara }, 1509 }; 1510 NL_DECLARE_ATTR_PARSER(pool_addr_parser, nla_p_pool_addr); 1511 #undef _OUT 1512 1513 #define _OUT(_field) offsetof(struct pf_nl_pooladdr, _field) 1514 static const struct nlattr_parser nla_p_add_addr[] = { 1515 { .type = PF_AA_ACTION, .off = _OUT(action), .cb = nlattr_get_uint32 }, 1516 { .type = PF_AA_TICKET, .off = _OUT(ticket), .cb = nlattr_get_uint32 }, 1517 { .type = PF_AA_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 1518 { .type = PF_AA_R_NUM, .off = _OUT(r_num), .cb = nlattr_get_uint32 }, 1519 { .type = PF_AA_R_ACTION, .off = _OUT(r_action), .cb = nlattr_get_uint8 }, 1520 { .type = PF_AA_R_LAST, .off = _OUT(r_last), .cb = nlattr_get_uint8 }, 1521 { .type = PF_AA_AF, .off = _OUT(af), .cb = nlattr_get_uint8 }, 1522 { .type = PF_AA_ANCHOR, .off = _OUT(anchor), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 1523 { .type = PF_AA_ADDR, .off = _OUT(addr), .arg = &pool_addr_parser, .cb = nlattr_get_nested }, 1524 { .type = PF_AA_WHICH, .off = _OUT(which), .cb = nlattr_get_uint32 }, 1525 }; 1526 #undef _OUT 1527 NL_DECLARE_PARSER(add_addr_parser, struct genlmsghdr, nlf_p_empty, nla_p_add_addr); 1528 1529 static int 1530 pf_handle_add_addr(struct nlmsghdr *hdr, struct nl_pstate *npt) 1531 { 1532 struct pf_nl_pooladdr attrs = { 0 }; 1533 int error; 1534 1535 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); 1536 if (error != 0) 1537 return (error); 1538 1539 if (attrs.which == 0) 1540 attrs.which = PF_RDR; 1541 1542 error = pf_ioctl_add_addr(&attrs); 1543 1544 return (error); 1545 } 1546 1547 static int 1548 pf_handle_get_addrs(struct nlmsghdr *hdr, struct nl_pstate *npt) 1549 { 1550 struct pf_nl_pooladdr attrs = { 0 }; 1551 struct nl_writer *nw = npt->nw; 1552 struct genlmsghdr *ghdr_new; 1553 int error; 1554 1555 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); 1556 if (error != 0) 1557 return (error); 1558 1559 if (attrs.which == 0) 1560 attrs.which = PF_RDR; 1561 1562 error = pf_ioctl_get_addrs(&attrs); 1563 if (error != 0) 1564 return (error); 1565 1566 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1567 return (ENOMEM); 1568 1569 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1570 ghdr_new->cmd = PFNL_CMD_GET_ADDRS; 1571 ghdr_new->version = 0; 1572 ghdr_new->reserved = 0; 1573 1574 nlattr_add_u32(nw, PF_AA_NR, attrs.nr); 1575 1576 if (!nlmsg_end(nw)) { 1577 nlmsg_abort(nw); 1578 return (ENOMEM); 1579 } 1580 1581 return (error); 1582 } 1583 1584 static int 1585 pf_handle_get_addr(struct nlmsghdr *hdr, struct nl_pstate *npt) 1586 { 1587 struct pf_nl_pooladdr attrs = { 0 }; 1588 struct nl_writer *nw = npt->nw; 1589 struct genlmsghdr *ghdr_new; 1590 int error; 1591 1592 error = nl_parse_nlmsg(hdr, &add_addr_parser, npt, &attrs); 1593 if (error != 0) 1594 return (error); 1595 1596 if (attrs.which == 0) 1597 attrs.which = PF_RDR; 1598 1599 error = pf_ioctl_get_addr(&attrs); 1600 if (error != 0) 1601 return (error); 1602 1603 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1604 return (ENOMEM); 1605 1606 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1607 ghdr_new->cmd = PFNL_CMD_GET_ADDR; 1608 ghdr_new->version = 0; 1609 ghdr_new->reserved = 0; 1610 1611 nlattr_add_u32(nw, PF_AA_ACTION, attrs.action); 1612 nlattr_add_u32(nw, PF_AA_TICKET, attrs.ticket); 1613 nlattr_add_u32(nw, PF_AA_NR, attrs.nr); 1614 nlattr_add_u32(nw, PF_AA_R_NUM, attrs.r_num); 1615 nlattr_add_u8(nw, PF_AA_R_ACTION, attrs.r_action); 1616 nlattr_add_u8(nw, PF_AA_R_LAST, attrs.r_last); 1617 nlattr_add_u8(nw, PF_AA_AF, attrs.af); 1618 nlattr_add_string(nw, PF_AA_ANCHOR, attrs.anchor); 1619 nlattr_add_pool_addr(nw, PF_AA_ADDR, &attrs.addr); 1620 1621 if (!nlmsg_end(nw)) { 1622 nlmsg_abort(nw); 1623 return (ENOMEM); 1624 } 1625 1626 return (0); 1627 } 1628 1629 #define _OUT(_field) offsetof(struct pfioc_ruleset, _field) 1630 static const struct nlattr_parser nla_p_ruleset[] = { 1631 { .type = PF_RS_PATH, .off = _OUT(path), .arg = (void *)MAXPATHLEN, .cb = nlattr_get_chara }, 1632 { .type = PF_RS_NR, .off = _OUT(nr), .cb = nlattr_get_uint32 }, 1633 }; 1634 NL_DECLARE_PARSER(ruleset_parser, struct genlmsghdr, nlf_p_empty, nla_p_ruleset); 1635 #undef _OUT 1636 1637 static int 1638 pf_handle_get_rulesets(struct nlmsghdr *hdr, struct nl_pstate *npt) 1639 { 1640 struct pfioc_ruleset attrs = { 0 }; 1641 struct nl_writer *nw = npt->nw; 1642 struct genlmsghdr *ghdr_new; 1643 int error; 1644 1645 error = nl_parse_nlmsg(hdr, &ruleset_parser, npt, &attrs); 1646 if (error != 0) 1647 return (error); 1648 1649 error = pf_ioctl_get_rulesets(&attrs); 1650 if (error != 0) 1651 return (error); 1652 1653 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1654 return (ENOMEM); 1655 1656 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1657 ghdr_new->cmd = PFNL_CMD_GET_RULESETS; 1658 ghdr_new->version = 0; 1659 ghdr_new->reserved = 0; 1660 1661 nlattr_add_u32(nw, PF_RS_NR, attrs.nr); 1662 1663 if (!nlmsg_end(nw)) { 1664 nlmsg_abort(nw); 1665 return (ENOMEM); 1666 } 1667 1668 return (0); 1669 } 1670 1671 static int 1672 pf_handle_get_ruleset(struct nlmsghdr *hdr, struct nl_pstate *npt) 1673 { 1674 struct pfioc_ruleset attrs = { 0 }; 1675 struct nl_writer *nw = npt->nw; 1676 struct genlmsghdr *ghdr_new; 1677 int error; 1678 1679 error = nl_parse_nlmsg(hdr, &ruleset_parser, npt, &attrs); 1680 if (error) 1681 return (error); 1682 1683 error = pf_ioctl_get_ruleset(&attrs); 1684 if (error != 0) 1685 return (error); 1686 1687 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) 1688 return (ENOMEM); 1689 1690 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1691 ghdr_new->cmd = PFNL_CMD_GET_RULESET; 1692 ghdr_new->version = 0; 1693 ghdr_new->reserved = 0; 1694 1695 nlattr_add_string(nw, PF_RS_NAME, attrs.name); 1696 1697 if (!nlmsg_end(nw)) { 1698 nlmsg_abort(nw); 1699 return (ENOMEM); 1700 } 1701 1702 return (0); 1703 } 1704 1705 static bool 1706 nlattr_add_pf_threshold(struct nl_writer *nw, int attrtype, 1707 struct pf_threshold *t, int secs) 1708 { 1709 int off = nlattr_add_nested(nw, attrtype); 1710 int diff, conn_rate_count; 1711 1712 /* Adjust the connection rate estimate. */ 1713 conn_rate_count = t->count; 1714 diff = secs - t->last; 1715 if (diff >= t->seconds) 1716 conn_rate_count = 0; 1717 else 1718 conn_rate_count -= t->count * diff / t->seconds; 1719 1720 nlattr_add_u32(nw, PF_TH_LIMIT, t->limit); 1721 nlattr_add_u32(nw, PF_TH_SECONDS, t->seconds); 1722 nlattr_add_u32(nw, PF_TH_COUNT, conn_rate_count); 1723 nlattr_add_u32(nw, PF_TH_LAST, t->last); 1724 1725 nlattr_set_len(nw, off); 1726 1727 return (true); 1728 } 1729 1730 static int 1731 pf_handle_get_srcnodes(struct nlmsghdr *hdr, struct nl_pstate *npt) 1732 { 1733 struct nl_writer *nw = npt->nw; 1734 struct genlmsghdr *ghdr_new; 1735 struct pf_ksrc_node *n; 1736 struct pf_srchash *sh; 1737 int i; 1738 int secs; 1739 1740 hdr->nlmsg_flags |= NLM_F_MULTI; 1741 1742 for (i = 0, sh = V_pf_srchash; i <= V_pf_srchashmask; 1743 i++, sh++) { 1744 /* Avoid locking empty rows. */ 1745 if (LIST_EMPTY(&sh->nodes)) 1746 continue; 1747 1748 PF_HASHROW_LOCK(sh); 1749 secs = time_uptime; 1750 1751 LIST_FOREACH(n, &sh->nodes, entry) { 1752 if (!nlmsg_reply(nw, hdr, sizeof(struct genlmsghdr))) { 1753 nlmsg_abort(nw); 1754 return (ENOMEM); 1755 } 1756 1757 ghdr_new = nlmsg_reserve_object(nw, struct genlmsghdr); 1758 ghdr_new->cmd = PFNL_CMD_GET_SRCNODES; 1759 ghdr_new->version = 0; 1760 ghdr_new->reserved = 0; 1761 1762 nlattr_add_in6_addr(nw, PF_SN_ADDR, &n->addr.v6); 1763 nlattr_add_in6_addr(nw, PF_SN_RADDR, &n->raddr.v6); 1764 nlattr_add_u32(nw, PF_SN_RULE_NR, n->rule->nr); 1765 nlattr_add_u64(nw, PF_SN_BYTES_IN, counter_u64_fetch(n->bytes[0])); 1766 nlattr_add_u64(nw, PF_SN_BYTES_OUT, counter_u64_fetch(n->bytes[1])); 1767 nlattr_add_u64(nw, PF_SN_PACKETS_IN, counter_u64_fetch(n->packets[0])); 1768 nlattr_add_u64(nw, PF_SN_PACKETS_OUT, counter_u64_fetch(n->packets[1])); 1769 nlattr_add_u32(nw, PF_SN_STATES, n->states); 1770 nlattr_add_u32(nw, PF_SN_CONNECTIONS, n->conn); 1771 nlattr_add_u8(nw, PF_SN_AF, n->af); 1772 nlattr_add_u8(nw, PF_SN_NAF, n->naf); 1773 nlattr_add_u8(nw, PF_SN_RULE_TYPE, n->ruletype); 1774 1775 nlattr_add_u64(nw, PF_SN_CREATION, secs - n->creation); 1776 if (n->expire > secs) 1777 nlattr_add_u64(nw, PF_SN_EXPIRE, n->expire - secs); 1778 else 1779 nlattr_add_u64(nw, PF_SN_EXPIRE, 0); 1780 1781 nlattr_add_pf_threshold(nw, PF_SN_CONNECTION_RATE, 1782 &n->conn_rate, secs); 1783 1784 if (!nlmsg_end(nw)) { 1785 PF_HASHROW_UNLOCK(sh); 1786 nlmsg_abort(nw); 1787 return (ENOMEM); 1788 } 1789 } 1790 PF_HASHROW_UNLOCK(sh); 1791 } 1792 1793 return (0); 1794 } 1795 1796 static const struct nlhdr_parser *all_parsers[] = { 1797 &state_parser, 1798 &addrule_parser, 1799 &getrules_parser, 1800 &clear_states_parser, 1801 &set_statusif_parser, 1802 &natlook_parser, 1803 &set_debug_parser, 1804 &set_timeout_parser, 1805 &set_limit_parser, 1806 &pool_addr_parser, 1807 &add_addr_parser, 1808 &ruleset_parser, 1809 }; 1810 1811 static int family_id; 1812 1813 static const struct genl_cmd pf_cmds[] = { 1814 { 1815 .cmd_num = PFNL_CMD_GETSTATES, 1816 .cmd_name = "GETSTATES", 1817 .cmd_cb = pf_handle_getstates, 1818 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1819 .cmd_priv = PRIV_NETINET_PF, 1820 }, 1821 { 1822 .cmd_num = PFNL_CMD_GETCREATORS, 1823 .cmd_name = "GETCREATORS", 1824 .cmd_cb = pf_handle_getcreators, 1825 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1826 .cmd_priv = PRIV_NETINET_PF, 1827 }, 1828 { 1829 .cmd_num = PFNL_CMD_START, 1830 .cmd_name = "START", 1831 .cmd_cb = pf_handle_start, 1832 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1833 .cmd_priv = PRIV_NETINET_PF, 1834 }, 1835 { 1836 .cmd_num = PFNL_CMD_STOP, 1837 .cmd_name = "STOP", 1838 .cmd_cb = pf_handle_stop, 1839 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1840 .cmd_priv = PRIV_NETINET_PF, 1841 }, 1842 { 1843 .cmd_num = PFNL_CMD_ADDRULE, 1844 .cmd_name = "ADDRULE", 1845 .cmd_cb = pf_handle_addrule, 1846 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1847 .cmd_priv = PRIV_NETINET_PF, 1848 }, 1849 { 1850 .cmd_num = PFNL_CMD_GETRULES, 1851 .cmd_name = "GETRULES", 1852 .cmd_cb = pf_handle_getrules, 1853 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1854 .cmd_priv = PRIV_NETINET_PF, 1855 }, 1856 { 1857 .cmd_num = PFNL_CMD_GETRULE, 1858 .cmd_name = "GETRULE", 1859 .cmd_cb = pf_handle_getrule, 1860 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1861 .cmd_priv = PRIV_NETINET_PF, 1862 }, 1863 { 1864 .cmd_num = PFNL_CMD_CLRSTATES, 1865 .cmd_name = "CLRSTATES", 1866 .cmd_cb = pf_handle_clear_states, 1867 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1868 .cmd_priv = PRIV_NETINET_PF, 1869 }, 1870 { 1871 .cmd_num = PFNL_CMD_KILLSTATES, 1872 .cmd_name = "KILLSTATES", 1873 .cmd_cb = pf_handle_kill_states, 1874 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1875 .cmd_priv = PRIV_NETINET_PF, 1876 }, 1877 { 1878 .cmd_num = PFNL_CMD_SET_STATUSIF, 1879 .cmd_name = "SETSTATUSIF", 1880 .cmd_cb = pf_handle_set_statusif, 1881 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1882 .cmd_priv = PRIV_NETINET_PF, 1883 }, 1884 { 1885 .cmd_num = PFNL_CMD_GET_STATUS, 1886 .cmd_name = "GETSTATUS", 1887 .cmd_cb = pf_handle_get_status, 1888 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1889 .cmd_priv = PRIV_NETINET_PF, 1890 }, 1891 { 1892 .cmd_num = PFNL_CMD_CLEAR_STATUS, 1893 .cmd_name = "CLEARSTATUS", 1894 .cmd_cb = pf_handle_clear_status, 1895 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1896 .cmd_priv = PRIV_NETINET_PF, 1897 }, 1898 { 1899 .cmd_num = PFNL_CMD_NATLOOK, 1900 .cmd_name = "NATLOOK", 1901 .cmd_cb = pf_handle_natlook, 1902 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1903 .cmd_priv = PRIV_NETINET_PF, 1904 }, 1905 { 1906 .cmd_num = PFNL_CMD_SET_DEBUG, 1907 .cmd_name = "SET_DEBUG", 1908 .cmd_cb = pf_handle_set_debug, 1909 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1910 .cmd_priv = PRIV_NETINET_PF, 1911 }, 1912 { 1913 .cmd_num = PFNL_CMD_SET_TIMEOUT, 1914 .cmd_name = "SET_TIMEOUT", 1915 .cmd_cb = pf_handle_set_timeout, 1916 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1917 .cmd_priv = PRIV_NETINET_PF, 1918 }, 1919 { 1920 .cmd_num = PFNL_CMD_GET_TIMEOUT, 1921 .cmd_name = "GET_TIMEOUT", 1922 .cmd_cb = pf_handle_get_timeout, 1923 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1924 .cmd_priv = PRIV_NETINET_PF, 1925 }, 1926 { 1927 .cmd_num = PFNL_CMD_SET_LIMIT, 1928 .cmd_name = "SET_LIMIT", 1929 .cmd_cb = pf_handle_set_limit, 1930 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1931 .cmd_priv = PRIV_NETINET_PF, 1932 }, 1933 { 1934 .cmd_num = PFNL_CMD_GET_LIMIT, 1935 .cmd_name = "GET_LIMIT", 1936 .cmd_cb = pf_handle_get_limit, 1937 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1938 .cmd_priv = PRIV_NETINET_PF, 1939 }, 1940 { 1941 .cmd_num = PFNL_CMD_BEGIN_ADDRS, 1942 .cmd_name = "BEGIN_ADDRS", 1943 .cmd_cb = pf_handle_begin_addrs, 1944 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1945 .cmd_priv = PRIV_NETINET_PF, 1946 }, 1947 { 1948 .cmd_num = PFNL_CMD_ADD_ADDR, 1949 .cmd_name = "ADD_ADDR", 1950 .cmd_cb = pf_handle_add_addr, 1951 .cmd_flags = GENL_CMD_CAP_DO | GENL_CMD_CAP_HASPOL, 1952 .cmd_priv = PRIV_NETINET_PF, 1953 }, 1954 { 1955 .cmd_num = PFNL_CMD_GET_ADDRS, 1956 .cmd_name = "GET_ADDRS", 1957 .cmd_cb = pf_handle_get_addrs, 1958 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1959 .cmd_priv = PRIV_NETINET_PF, 1960 }, 1961 { 1962 .cmd_num = PFNL_CMD_GET_ADDR, 1963 .cmd_name = "GET_ADDRS", 1964 .cmd_cb = pf_handle_get_addr, 1965 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1966 .cmd_priv = PRIV_NETINET_PF, 1967 }, 1968 { 1969 .cmd_num = PFNL_CMD_GET_RULESETS, 1970 .cmd_name = "GET_RULESETS", 1971 .cmd_cb = pf_handle_get_rulesets, 1972 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1973 .cmd_priv = PRIV_NETINET_PF, 1974 }, 1975 { 1976 .cmd_num = PFNL_CMD_GET_RULESET, 1977 .cmd_name = "GET_RULESET", 1978 .cmd_cb = pf_handle_get_ruleset, 1979 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1980 .cmd_priv = PRIV_NETINET_PF, 1981 }, 1982 { 1983 .cmd_num = PFNL_CMD_GET_SRCNODES, 1984 .cmd_name = "GET_SRCNODES", 1985 .cmd_cb = pf_handle_get_srcnodes, 1986 .cmd_flags = GENL_CMD_CAP_DUMP | GENL_CMD_CAP_HASPOL, 1987 .cmd_priv = PRIV_NETINET_PF, 1988 }, 1989 }; 1990 1991 void 1992 pf_nl_register(void) 1993 { 1994 NL_VERIFY_PARSERS(all_parsers); 1995 1996 family_id = genl_register_family(PFNL_FAMILY_NAME, 0, 2, PFNL_CMD_MAX); 1997 genl_register_cmds(PFNL_FAMILY_NAME, pf_cmds, nitems(pf_cmds)); 1998 } 1999 2000 void 2001 pf_nl_unregister(void) 2002 { 2003 genl_unregister_family(PFNL_FAMILY_NAME); 2004 } 2005